28. d5e5 This isn't the most dangerous move, as it doesn't help White's position much. Ding will take the queen to g3, which is not the best plan. He could have improved his king's position with 28.Kc2 or started the pawn push with 28.c4. 28... b8e8  29. e5g3  29... h4h5 Black should have exchanged queens, leading to an interesting rook endgame. 30. g3f4 